Two men are fighting for life and three others are recovering in hospital after the vehicle they were in struck a wild pig before slamming into a tree in northern NSW.
Police say the Toyota Landcruiser left Maules Creek Road, east of Narrabri, shortly before 1.30am on Saturday.
According to reports, the 4WD hit the animal before leaving the road at Tarriaro, and crashing into the tree.
The occupants, four men and a woman, were trapped inside for several hours before being released by fire and rescue officers.
The driver, a 28-year-old man was airlifted to Newcastle's John Hunter Hospital with critical injuries.
His front seat passenger, a man aged 21, was taken by road ambulance to Narrabri Hospital before also being airlifted to John Hunter in a critical condition.
The three rear passengers, a 21-year-old woman and two men, 20 and 22, all sustained serious injuries.
The woman was flown to St George Hospital in Sydney, the older man to John Hunter and the younger went by road to Narrabri Hospital.
A police investigation into the circumstances surrounding the crash has been established.